We are cooking with a plethora of winter vegetables over the next months: parsnips, celery, red cabbage, Jerusalem artichokes, spinach, watercress, squashes, pumpkins and peppers, to make sides as well as vegetarian dishes, from tortillas to soups. Our autumn menus will also make a feast of mushrooms, from chanterelles, ceps and girolles to the ominous-sounding and black-coloured "trompetas&nbs…